[INFO] fetching crate crates-io-semverver 0.22.0...
[INFO] checking crates-io-semverver-0.22.0 against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] extracting crate crates-io-semverver 0.22.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate crates-io-semverver 0.22.0 on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate crates-io-semverver 0.22.0
[INFO] finished tweaking crates.io crate crates-io-semverver 0.22.0
[INFO] tweaked toml for crates.io crate crates-io-semverver 0.22.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c582c8e9b59a3aa21d83efe92ddb7c780795c82dacef53c3d14ef8bd628c6ec
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4c582c8e9b59a3aa21d83efe92ddb7c780795c82dacef53c3d14ef8bd628c6ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c582c8e9b59a3aa21d83efe92ddb7c780795c82dacef53c3d14ef8bd628c6ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c582c8e9b59a3aa21d83efe92ddb7c780795c82dacef53c3d14ef8bd628c6ec", kill_on_drop: false }`
[INFO] [stdout] 4c582c8e9b59a3aa21d83efe92ddb7c780795c82dacef53c3d14ef8bd628c6ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6fb987639dace316b0cf06e9f34088ba329eb721cc547ceb9f9ddd204d6c357d
[INFO] running `Command { std: "docker" "start" "-a" "6fb987639dace316b0cf06e9f34088ba329eb721cc547ceb9f9ddd204d6c357d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling curl v0.4.34
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.60
[INFO] [stderr]    Compiling curl-sys v0.4.40+curl-7.75.0
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking serde v1.0.123
[INFO] [stderr]     Checking serde_json v1.0.62
[INFO] [stderr]     Checking crates-io-semverver v0.22.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.60s
[INFO] running `Command { std: "docker" "inspect" "6fb987639dace316b0cf06e9f34088ba329eb721cc547ceb9f9ddd204d6c357d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fb987639dace316b0cf06e9f34088ba329eb721cc547ceb9f9ddd204d6c357d", kill_on_drop: false }`
[INFO] [stdout] 6fb987639dace316b0cf06e9f34088ba329eb721cc547ceb9f9ddd204d6c357d